[Creator Mat]

I love the critisim for the drive so far thanks every one who has posted.
Here is to answer some questions on why i did some things

1. the thickness of 1/8" is there because last year we built the prototype for this prototype and it used 1/4" plates. The 1/4" plate was complete overkill. It wieghs about 7lbs without the wheel and half the sprocket and bearings. It also could survive a nuclear bomb. But i like the suggestion for 3/16" plate. Ill see if we can use that

2. i like the fixed axle and interal sprockets concept. I will change the design to utilize that

3. I used the turntable because it was cheap. But after what you said i will chage to bushings and bearings for the turning method.

4. for the bevel gear choice i chose it because it is the cheapest set of bevel gears i could find with a 1/2" bore